Vytvoř ping pong pro 2 hráče na trojúhelníku's game

Click here for free DL of the app version that can save data.

No:48237

←

Prev Next

→

Vytvoř ping pong pro 2 hráče na trojúhelníku
Developer User20718｜Date and time 24/3/1 20:09:38
Build time 9.901 sec｜Game capacity 2.744KB｜

Script

←

Prev　Next

→ 　

Back　

[PR]現在の売れ筋グッズランキング

Click here for free DL of the app version that can save data.

<!DOCTYPE html>
<html>
<head>
    <title>Ping Pong Game</title>
    <style>
        canvas {
            border: 1px solid black;
            display: block;
            margin: 0 auto;
        }
    </style>
</head>
<body>
    <canvas id="gameCanvas" width="800" height="600"></canvas>
    
    <script>
        const canvas = document.getElementById("gameCanvas");
        const ctx = canvas.getContext("2d");

let ballX = canvas.width / 2;
        let ballY = canvas.height / 2;
        let ballRadius = 10;
        let ballDX = 2;
        let ballDY = -2;

let paddleWidth = 100;
        let paddleHeight = 10;
        let paddleX = (canvas.width - paddleWidth) / 2;
        let paddleY = canvas.height - paddleHeight - 10;
        let paddleDX = 5;

document.addEventListener("keydown", keyDownHandler);
        document.addEventListener("keyup", keyUpHandler);

function keyDownHandler(e) {
            if(e.key === "ArrowLeft") {
                paddleDX = -5;
            } else if(e.key === "ArrowRight") {
                paddleDX = 5;
            }
        }

function keyUpHandler(e) {
            if(e.key === "ArrowLeft" || e.key === "ArrowRight") {
                paddleDX = 0;
            }
        }

function drawBall() {
            ctx.beginPath();
            ctx.arc(ballX, ballY, ballRadius, 0, Math.PI*2);
            ctx.fillStyle = "#000";
            ctx.fill();
            ctx.closePath();
        }

function drawPaddle() {
            ctx.beginPath();
            ctx.rect(paddleX, paddleY, paddleWidth, paddleHeight);
            ctx.fillStyle = "#000";
            ctx.fill();
            ctx.closePath();
        }

function draw() {
            ctx.clearRect(0, 0, canvas.width, canvas.height);
            drawBall();
            drawPaddle();

ballX += ballDX;
            ballY += ballDY;

if(ballX + ballDX > canvas.width - ballRadius || ballX + ballDX < ballRadius) {
                ballDX = -ballDX;
            }

if(ballY + ballDY < ballRadius) {
                ballDY = -ballDY;
            } else if(ballY + ballDY > canvas.height - ballRadius) {
                if(ballX > paddleX && ballX < paddleX + paddleWidth) {
                    ballDY = -ballDY;
                } else {
                    alert("Game Over");
                    document.location.reload();
                }
            }

paddleX += paddleDX;

if(paddleX < 0) {
                paddleX = 0;
            } else if(paddleX + paddleWidth > canvas.width) {
                paddleX = canvas.width - paddleWidth;
            }
        }

setInterval(draw, 10);
    </script>
</body>
</html>